How do I add items and additional charges to a PO?

1. Click "Add Items" at the top right of the "Item List" to add existing items. To create a new item, click "Create Item". 2. To modify an existing item, click "Edit" on the right of its row. After changing editable fields, press Enter to save. For multiline fields, use Ctrl/⌘ + Enter to save. 3. To add additional charges, click "Add Additional Charge" at the top right of the additional charges section and enter the relevant details. 4. Check the item subtotal, additional charges, and PO total, then click "Confirm" at the top right.